(as) busy as popcorn on a skillet
Constantly busy, active, or occupied (with something). I'm currently choreographing three plays, so I'm busy as popcorn on a skillet. Can we meet next week instead? I'm just as busy as popcorn on a skillet right now. Between working two part-time jobs, volunteering on the weekends, and looking after his little brother, Sam's been busy as popcorn on a skillet this summer.
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